package info.androidhive.actionbar;

import java.util.*;

import android.content.*;
import android.graphics.*;
import android.view.*;
import android.widget.*;

public class ExpandableListAdapter extends BaseExpandableListAdapter
{
  private Context _context;
  private List<String> _listDataHeader;
  private HashMap<String, List<String>> _listDataChild;
  
  public ExpandableListAdapter(Context context, List<String> listDataHeader,
      HashMap<String, List<String>> listChildData) {
    this._context = context;
    this._listDataHeader = listDataHeader;
    this._listDataChild = listChildData;
  }
  
  @Override
  public int getGroupCount()
  {
    return this._listDataHeader.size();
  }
  @Override
  public int getChildrenCount(int groupPosition)
  {
    return this._listDataChild.get(this._listDataHeader.get(groupPosition)).size();
  }
  @Override
  public Object getGroup(int groupPosition)
  {
    return this._listDataHeader.get(groupPosition);
  }
  @Override
  public Object getChild(int groupPosition, int childPosition)
  {
    return this._listDataChild.get(this._listDataHeader.get(groupPosition)).get(childPosition);
  }
  @Override
  public long getGroupId(int groupPosition)
  {
    return groupPosition;
  }
  @Override
  public long getChildId(int groupPosition, int childPosition)
  {
    return childPosition;
  }
  @Override
  public boolean hasStableIds()
  {
    return false;
  }
  @Override
  public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent)
  {
    String headerTitle = (String) getGroup(groupPosition);
    if (convertView == null) {
      LayoutInflater infalInflater = (LayoutInflater) this._context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      convertView = infalInflater.inflate(R.layout.list_group, null);
    }
    
    TextView lblListHeader = (TextView) convertView.findViewById(R.id.lblListHeader);
    lblListHeader.setTypeface(null, Typeface.BOLD);
    lblListHeader.setText(headerTitle);
    
    return convertView;
  }
  @Override
  public View getChildView(int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent)
  {
    final String childText = (String) getChild(groupPosition, childPosition);
   
    if (convertView == null) {
      LayoutInflater infalInflater = (LayoutInflater) this._context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      convertView = infalInflater.inflate(R.layout.list_item, null);
    }
    
    TextView lblListChild = (TextView) convertView.findViewById(R.id.lblListItem);
    lblListChild.setText(childText);
    
    return convertView;
  }
  @Override
  public boolean isChildSelectable(int groupPosition, int childPosition)
  {
    return true;
  }
  
}
